Fornia



Jan. 30, 1923. v 1,443,911.

- E- R. BUWfIVE H F INTERNAL COMBUSTION ENGINE.

FILED .MAY 19. 192i. 3 S HEETS SHEET 1.

Jan. 30, 1923. 1,443,911.-

. Y E. R. BURTNETT.

INTERNAL cornsusnom ENGINE. W

FILED MAY [9, 1921. 3 SHEETS-SHEET Z.

mgnzz EVERETT/C? BURT/V577? i l M Jan. 30, 1923. I E. R. BURTNETT.

INTERNAL COMBUSTION ENGiNE.

3 SHEETS-SHEET 3- FILED MAY I9, 192].

fll nm 5 5/2577" RBURT/VET Patented Jan. 30, 1923.

UNITED @TA'lES PATENT ()FFICE.

EVERETT R. BURTNETT, 0 LOS ANGELES, CALIFORNIA, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO THE AUTOMOTIVE VALVES 00., 0F LGS ANGELES, CALI- IEOJBNIA, A VOLUNTARY TRUST.

INTERNAL-COMBUSTION ENGINE.

Application filed May 19,

closed in my application aforesaid, as well as'other similar types of engines; to provide a construction wherein the head or upper portion of the cylinder is formed in a separate piece, thereby greatly facilitating and decreasing the cost of production of the en glue and at the same time providing a construction that may be easily and quickly assembled and likewise easily and quickly removed for the purpose of repairs or ad 'justment of parts. 7

The type of engine to which my invention relates utilizes a sleeve valve and a piston valve for controlling the admission ofygaseous fuel into the combustion chamber and for controlling the egress of burnt gases and products of combustion from said combustion chamber, and, necessarily, these valves are separated by an annular wall or partition.

-It is one of the objects of my invention to provide a construction wherein this annular wall is formed integral with the removable headpiece, thereby permitting the valve cylinder to be readily bored and finished and likewise enabling the surfaces of the sleeve valve, the piston valve and the stationary wall or partition between them to be readily machined and finished, thereby providing a very accurate construction that is effective in minimizing leakage of fluid pressure. I

With 'he foregoing and other objects in view, my invention consists in certain novel features of'construction and arrangement of parts that will be hereinafter'more fully 1921. Serial No. 471,010.

described and claimed and illustrated in the accompanying drawings, in which- Fig. l is a vertical section taken through the center of an internal combustion engine of my improved construction.

Fig. 2 is aside elevational view of the engine and showing the cover plate of the valve. actuating and timing gear case removed.

Fig. 3 is a top plan view of the separately formed head that is positioned on the upper endof the cylinder block and with one end thereof in horizontal section.

Fig. 4 is a vertical section taken approximately on the line & of Fig. 3.

Fig. 5 is a horizontal section taken approximately on the line 5-5 ofFig. 4c.

Fig. 6 is a plan view of the cylinder block of the engine.

:Fig; 7 is a vertical section taken approximately on the line 77 of Fig. 6.

Fig. 8 is a horizontal section taken approximately on the line 8-8 of Fig. 7.

Referring by numerals to the accompanying drawings, which illustrate a practical embodiment of myinvention, 10 designates the crank case of the engine, 11 the crank shaft, 12 the cylinder block in which are formed a power piston chamber 13 and a valve chamber 14:, said chambers being arranged side by side and of uniform diameter throughout their lengths, thereby enabling the boring and finishing operations to be readily performed.

jlhe upper portion of the cylinder block ispreferably provided with a water jacket 15, and arranged for reciprocatory movement. within the chamber 13 is a piston 16 that is connected in the usual manner to crank shaft 11. i

Arranged for reciprocatory movement within chamber 14 is a sleeve valve 17 that is connected in the usual manner to a crank on a valveactuating and timing crank shaft 18. which latter is rotatably mounted in suitable bearings in the crank case 10 and being driven from shaft 11 in, any suitable ,9, manner, preferably by means of a train of gearing 19. r

The external diameter of the sleeve valve 17. is the same throughout its length and the internal diameter of said valve is the same throughout the greater part of its lengzh, thereby enabling said valve to be rea 1y machin d'andf'fiujshed.

Comentrioally amnged wifirin the'upper poltion of sleeve valve 17 and spaced apart thslzs xqma s ap toa'velv 20 Mi connectediii. auwsui on shaft1'8, andsaid'piston valve co-operates with the sleeve valve in controlling the admission of gaseous fuel intq thpwom F chamber of the engine and the egress or exhaust of burnt gases andrplolllctlroi m bustion therefrom.

For amroredetwi-led deeeriptien-of thecenstructioni-and operation -o f *the slew valve IT- and piQtemvaMe 20, reierence may be had temy abbve' mentioned -cmpendingapplieation.

Inthe construction forthin said coendingapplioatien. the head (mapper pontien of 'theeylinder bloek-is fo'rrne integral with the main body portion of said bloelr', but: inthe present construction, this'hbad is separately fonmedanditis provided witlflan integral structure thatas we Iinder for the u per rtion ofthwpistton-va Ve'mid with av e'pend fng-annular wall; that-serves as a partition between theupper' portion oi 'the' sldeve'valve 'and?thelower portibn of said pisten valve.

As illustrated; this removable headaxeomprises a plate 21 that is hollow on provided w ithwehamber that communicates with the water jacket of 'tliecylindr hloek -and' said plate bein said 'cylin erblock inany suitahle'manner, preferablyby-boltssueh aQB;

Formed integral withthelplate 21 and projecting upwardly therefiiom, over the valve chamber 14, is a substantially' cylim drical' *member- I 23 that isp'rovidedwith a. water which communicartes withgth'e ehambei iu plate 21.

The chamber 24 within tllls 'cylindtical member 23 extends downwardly through plate 21-and-'through= adependin annular wall or flange 25 that isforme integral withtlieunderside of theplate, and said chambePM' is'of uniform diameter throughout-its length,- thereby permitting its internal surface-to be'readily bored, machined and finished:

This chamber 24 receives thereciprocat- -ing isten valve'20; and the depending'wall or which" has the same external diameter' threughout its length, fits snugly within-the upper portion of sleeve valve 17.

' lli' order tolfaeilitate assembly and to insuietheceneentric arrangement ofthe annular'w'allj r flange 25' within the upper portion of chamber 14; a concentric annular shoulder 26 is formed onthe undersideof plate 21around the wallor flange 25 "and the diameter of said shoulder beingsueh that tahl tmanwam the crank.

secured'ni positiem on top of.

exhaust of burnt products of combustion itherefmomr Formed in the central portion of the plate v21wthet-bfermn1thtid1ase of the head, is a horizontally disposed port or chamber 28, the inner end thereof communicatingwith the central-'portioaofi the piston val ve chamber 24 in the removable head and *the outfln head ofsaid port or chamber 28 being opemon the underside ofi plate 21* and eemmunioat ing with-the upper end of pistom chamber 13' when-the head-"is propefllypositioned on the cylinder block.

Fennedfihreug h the Wat-l o'f platte -21, aboveithisport or chamben 28; is'a1tlmeaded aperture 29thbt is adapted to receive=-the threaded shank ofa spjark plug; 30.

Removably positionedim tlie -uppem end 0% the-piston! valve ehmbenfie izea breather VOl'VG'-thIt 00m a haped portion 31 that ts snugly wi imsaid than bar zaeandsaidrmg bei ig gmvidadewitlna plurality offlpavtitiouauor eflum'ng plates 32'that1 o A diflemnt ventieal planea'eancl w kieh are diapow soras' "ffllhn'flflfllflfllt;

' passageway fen the air asit entersiaud "discharges. fromthe :uppem poniimmfi thepistenvalve ehamben The'removable head contemplated by my invention is: relatiraelysimple in: stmetune, may be easily and cheaply preduoednand the-suvfiacestkw are eng "4 'by the sleeve and: piston valm are "capableeofi beingvreade ilye machined and finisbedy thereby making it possiblmtzo ipgiodneefluid tigtlal: 'oints bv tween the we ng" famseof :saiil bad: and the (ac-operating sleevmand pistom valves. Further,- by providing a removabld hoad, it is possible to'easi-ly andquiehly: gain ac cess to the sleeve and piston valves inuthe' ber, of a removable head positioned on'top of the cylinder block and provided with a chamber for one of said valves, and an annular wall formed integral with said head which annular wall extends downwardly into the valve chamber between the valves therein.

2. The combination with an internal combustion engine cylinder block having a valve chamber the diameter of which is uniform throughout its length, of a head reinovably applied to the top of the block for closing the valve chamber therein, said head being provided with a valve chamber that is concentrically disposed with respect to the valve chamber in the cylinderblock, an annular wall extending from the underside of said head into the upper portion of the valve chamber in the cylinder block, the external diameter of said annular wall being uniform throughout its length and the internal diameter of said wall corresponding with the internal diameter of the valve chamber in said head, so that the internal diameter of the valve chamber in the head and the opening through said annular wall is uniform throughout the length of the combined chambers, and a concentric shoulder on the underside of said head, which shoulder is adapted to fit snugly within the upper end of the valve chamber in the cylinder block.

3. The combination with an internal combustion engine cylinder block having a piston chamber and a valve chamber, of a head removably positioned on top of said cylinder block and having a portion disposed within the upper end oi the valve chamber, there being a valve chamber formed in said head and a concentrically arranged wall extending from the underside of said head downwardly into the valve chamber in the cylinder block, and the chamber within said annular wall being a continuation of the valve chamber in the head.

In testimony whereof I have signed my name to this specification.

EVERETT R. BURTNETT. 

